I fed him with a spoon designed specifically for 4 months and up, which I still felt was too big for his wee little mouth. I've since moved on to feeding him a runny rice cereal solution in a bottle with a split teat because it is way less messy, however I have literally just read about Early Childhood Caries (AKA Tooth Decay) being caused by the inappropriate use of bottles. "The American Dental Association recommends juice be given to an infant with a cup rather than a bottle. This decreases the risk of both baby bottle tooth decay and overfeeding. Baby bottle tooth decay, also known as nursing bottle mouth syndrome, is a disorder of extreme dental decay of the upper teeth, caused by infants or toddlers falling asleep while sucking a bottle filled with juice, milk, or any other fermentable liquid." via http://www.faqs.org/nutrition/Hea-Irr/Infant-Nutrition.html. I'm not currently feeding him juice as such, but I have mixed puree apple with rice cereal and water and fed him this via split teat bottle...

Looks like I'm on the lookout for a new feeding spoon... And I think I know exactly which one I want to try, check out the radness that is the Boon Feeding Spoon.